linux-kernel - Re: [PATCH v6 2/5] dt-bindings: thermal: qcom-spmi-temp-alarm: Improve thermal zone in example

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Date:   Tue, 31 Jul 2018 13:20:36 -0600
From:   Rob Herring <robh@...nel.org>
To:     Matthias Kaehlcke <mka@...omium.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        linux-soc@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
        David Collins <collinsd@...eaurora.org>,
        Douglas Anderson <dianders@...omium.org>,
        Stephen Boyd <sboyd@...nel.org>
Subject: Re: [PATCH v6 2/5] dt-bindings: thermal: qcom-spmi-temp-alarm:
 Improve thermal zone in example

On Tue, Jul 31, 2018 at 11:59:14AM -0700, Matthias Kaehlcke wrote:
> The current example for a thermal zone isn't very useful as reference
> since it would result in a hardware shutdown at 145°C, instead of
> allowing the system to try to shutdown gracefully. Without an ADC
> channel a maximum of two trip points is useful in practice for this
> sensor, with temperatures corresponding to the stage 1 and stage 2
> 'hardware trip points'. A critical trip point at stage 2 may allow the
> system to shutdown before a hardware shutdown at stage 3 kicks in. It
> should be noted though that by default the chip performs a 'partial
> shutdown' when the temperature reaches stage 2, which may prevent an
> orderly shutdown. The 'partial shutdown' can be disabled by software.
> 
> Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
> Reviewed-by: Douglas Anderson <dianders@...omium.org>
> ---
> Changes in v6:
> - patch added to the series
> ---
>  .../bindings/thermal/qcom-spmi-temp-alarm.txt         | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)

Reviewed-by: Rob Herring <robh@...nel.org>